EA 2.1. Can't export CLOB columns.

Hello:
I don't know the reason why CLOB column export is not available or incorrect...
In EA 2.1. version SQL developer "truncates" the CLOB field longer than 4000 characters..
Why?
*I can do that succesfully with TOAD.....*

Because it's a missing feature.
Any enhancement requests should go to the SQL Developer Exchange, so others can vote and add weight for possible future implementation.
Regards,
K.

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DB: Oracle10g
SQLDeveloper: 1.0
OS: windows xp for sqldeveloper
Linux for Oracle db
we have a table with two CLOB columns. We want to export the data to either text or csv. But the CLOB columns don't show up in the columns that can be exported.
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I don't think this is a good protection: you can have these characters in VARCHAR anyway, and this way you "throw the baby out with the bath water". Not mentioning that right now also immune formats like HTML are also limited.

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Table-1 (MONTHLY_PART_1)
Table-2 (MONTHLY_PART_2)
SL_NO
SL_NO
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COMP
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U-1
U-2
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Error 402 at line 103, column 4
alias required in SELECT list of cursor to avoid duplicate column names.
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You'll have to *alias* your columns, not prefix it with the table names:
$[CHE_TEST@asterix1_impl] r
1 declare
2    cursor cData is
3      with data as (
4        select 1 id, 'test1' val1, 'a' val2 from dual
5        union all
6        select 1 id, '1test' val1, 'b' val2 from dual
7        union all
8        select 2 id, 'test2' val1, 'a' val2 from dual
9        union all
10        select 2 id, '2test' val1, 'b' val2 from dual
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13      from data a, data b
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16      and b.val2 = 'b';
17 begin
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19      null;
20    end loop;
21* end;
for rData in cData loop
ERROR at line 18:
ORA-06550: line 18, column 3:
PLS-00402: alias required in SELECT list of cursor to avoid duplicate column names
ORA-06550: line 18, column 3:
PL/SQL: Statement ignored
$[CHE_TEST@asterix1_impl] r
1 declare
2    cursor cData is
3      with data as (
4        select 1 id, 'test1' val1, 'a' val2 from dual
5        union all
6        select 1 id, '1test' val1, 'b' val2 from dual
7        union all
8        select 2 id, 'test2' val1, 'a' val2 from dual
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10        select 2 id, '2test' val1, 'b' val2 from dual
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13      from data a, data b
14      where a.id = b.id
15      and a.val2 = 'a'
16      and b.val2 = 'b';
17 begin
18    for rData in cData loop
19      null;
20    end loop;
21* end;
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cheers

Can clob columns be selected across a database link (synonym)?

Hello,
I would like to do something like this...
insert into archive_table (id, msg, start_date)
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http://asktom.oracle.com/pls/ask/f?p=4950:8:15261108079829288196::NO::F4950_P8_DISPLAYID,F4950_P8_CRITERIA:950029833940

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Hi,
Below question is for oracle 11g database on RHEL.
we are having a CLOB column of 8K. Now the developer is asking to get that increase to 32k how can i make that?
As i know we cannot change "chunk" size once after it is created. I thought we need to recreate a new table with chunk 32k and then export/import the data from old table and drop that old table.
But, the point where i'm struck is ,
the DB_BLOCK_SIZE is 8k. So, can we create a new table with 32k chunk size. Does it conflict?
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Can you please suggest me the better way and correct me if i'm wrong..

These steps might help:
How to alter LOB storage definition.
You may use the following to alter the table and the associated LOB allowing for more extents:
alter table owner.table_name
modify LOB(lob_column_name)
(storage (next 100M MAXEXTENTS 1000));
Example:
User is getting the following error:
APP-FND-00565: The export failed in APP_EXPORT.DUMP_DATA
PL/SQL ERROR: ORA-01691: unable to extend lob segment APPLSYS.SYS_LOB0000033586C00004$$ by 311075 in tablespace APPLSYSD
Looking at tablespace APPLSYSD I can see that it does have room to extent at datafile level for another 800 MB. And TEMP has plenty of room as well.
Using the SQL provided in this page: Looking at the LOB:
SYS_LOB0000033586C00004$$
It looks like Column FILE_DATA of datatype LOBSEGMENT in table APPLSYS.FND_LOBS has grown to be 5 GB in size and was trying to extent itself grabbing another 2.3 GB (NEXT_EXTENT is 2548301824) which of course it could not do, I modified it so it can extent only by another 100 MB.
SQL> alter table APPLSYS.FND_LOBS modify lob (FILE_DATA)
(storage (maxextents 1000 next 100M));
Table altered.
For more detail see: http://www.idbasolutions.com/database/find-lob.html

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I created a nightmare table containing numerous binary data types to test an application I was working on, and believe I have found an undocumented bug in Oracle's JDBC drivers that is preventing me from loading a CLOB and a LONG in a single SQL select statement. I can load the CLOB successfully, but attempting to call ResultSet.get...() for the LONG column always results in
java.sql.SQLException: Stream has already been closed
even when processing the columns in the order of the SELECT statement.
I have demonstrated this behaviour with version 9.2.0.3 of Oracle's JDBC drivers, running against Oracle 9.2.0.2.0.
The following Java example contains SQL code to create and populate a table containing a collection of nasty binary columns, and then Java code that demonstrates the problem.
I would really appreciate any workarounds that allow me to pull this data out of a single query.
import java.sql.*;
This class was developed to verify that you can't have a CLOB and a LONG column in the
same SQL select statement, and extract both values. Calling get...() for the LONG column
always causes 'java.sql.SQLException: Stream has already been closed'.
CREATE TABLE BINARY_COLS_TEST
PK INTEGER PRIMARY KEY NOT NULL,
CLOB_COL CLOB,
BLOB_COL BLOB,
RAW_COL RAW(100),
LONG_COL LONG
INSERT INTO BINARY_COLS_TEST (
PK,
CLOB_COL,
BLOB_COL,
RAW_COL,
LONG_COL
) VALUES (
1,
'-- clob value --',
HEXTORAW('01020304050607'),
HEXTORAW('01020304050607'),
'-- long value --'
public class JdbcLongTest
public static void main(String argv[])
throws Exception
Driver driver = (Driver)Class.forName("oracle.jdbc.driver.OracleDriver").newInstance();
DriverManager.registerDriver(driver);
Connection connection = DriverManager.getConnection(argv[0], argv[1], argv[2]);
Statement stmt = connection.createStatement();
ResultSet results = null;
try
String query = "SELECT pk, clob_col, blob_col, raw_col, long_col FROM binary_cols_test";
results = stmt.executeQuery(query);
while (results.next())
int pk = results.getInt(1);
System.out.println("Loaded int");
Clob clob = results.getClob(2);
// It doesn't work if you just close the ascii stream.
// clob.getAsciiStream().close();
String clobString = clob.getSubString(1, (int)clob.length());
System.out.println("Loaded CLOB");
// Streaming not strictly necessary for short values.
// Blob blob = results.getBlob(3);
byte blobData[] = results.getBytes(3);
System.out.println("Loaded BLOB");
byte rawData[] = results.getBytes(4);
System.out.println("Loaded RAW");
byte longData[] = results.getBytes(5);
System.out.println("Loaded LONG");
catch (SQLException e)
e.printStackTrace();
results.close();
stmt.close();
connection.close();
} // public class JdbcLongTest

The problem is that LONGs are not buffered but are read from the wire in the order defined. The problem is the same as
rs = stmt.executeQuery("select myLong, myNumber from tab");
while (rs.next()) {
int n = rs.getInt(2);
String s = rs.getString(1);
The above will fail for the same reason. When the statement is executed the LONG is not read immediately. It is buffered in the server waiting to be read. When getInt is called the driver reads the bytes of the LONG and throws them away so that it can get to the NUMBER and read it. Then when getString is called the LONG value is gone so you get an exception.
Similar problem here. When the query is executed the CLOB and BLOB locators are read from the wire, but the LONG is buffered in the server waiting to be read. When Clob.getString is called, it has to talk to the server to get the value of the CLOB, so it reads the LONG bytes from the wire and throws them away. That clears the connection so that it can ask the server for the CLOB bytes. When the code reads the LONG value, those bytes are gone so you get an exception.
This is a long standing restriction on using LONG and LONG RAW values and is a result of the network protocol. It is one of the reasons that Oracle deprecates LONGs and recommends using BLOBs and CLOBs instead.
Douglas

Can we export DATA from all tables in a schema?

Hi,
I have a question; Can we export all the DATA from all the tables present in the schema to any source (eigther CSV, TXT, DAt, etc..)?
Or
Can I have a PL/SQL procedure to display DATA from all Tables in a schema?
With Best Regards,
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EA 2.1. Can't export CLOB columns.

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